Implement support for multiple input files handling

[sgaist]

Prerequisites

• Have you read the documentation on contributing? https://github.com/bee-san/pyWhat/wiki/Adding-your-own-Regex

Why do we need this pull request?

This will allow pyWhat to handle being given multiple inputs.

What GitHub issues does this fix?

• Fixes Pywhat should accept multiple files as input #171

Copy / paste of output

Please copy and paste the output of PyWhat with your new addition using an example that tests this addition below:

 what "0x52908400098527886E0F7030069857D2E4169EE7" noxfile.py
Matched on: 5290840009852
Name: Phone Number

Matched on: 7030069857
Name: Phone Number

Matched on: 529084000
Name: American Social Security Number
Description: An American Identification Number

Matched on: 030069857
Name: American Social Security Number
Description: An American Identification Number

Matched on: 5290840009852788
Name: MasterCard Number

Matched on: 0x52908400098527886E0F7030069857D2E4169EE7
Name: Ethereum (ETH) Wallet Address
Link:  https://etherscan.io/address/0x52908400098527886E0F7030069857D2E4169EE7

Matched on: 52908400098
Name: Turkish Identification Number
Matched on: nox.ses
Name: Uniform Resource Locator (URL)

Matched on: nox.options.ses
Name: Uniform Resource Locator (URL)

Matched on: environ.ge
Name: Uniform Resource Locator (URL)

Matched on: nox.options.sessions.app
Name: Uniform Resource Locator (URL)

Matched on: noxfile.py
Name: Uniform Resource Locator (URL)

Matched on: conf.py
Name: Uniform Resource Locator (URL)

Matched on: nox.sessions.Session.in
Name: Uniform Resource Locator (URL)

Matched on: Session.in
Name: Uniform Resource Locator (URL)

Matched on: session.run
Name: Uniform Resource Locator (URL)

Matched on: session.in
Name: Uniform Resource Locator (URL)

Matched on: nox.ses
Name: Uniform Resource Locator (URL)

Matched on: session.run
Name: Uniform Resource Locator (URL)

Matched on: session.run
Name: Uniform Resource Locator (URL)

Matched on: nox.ses
Name: Uniform Resource Locator (URL)

Matched on: session.run
Name: Uniform Resource Locator (URL)